LibrePilot/flight/libraries/mavlink/v1.0/common/mavlink_msg_vfr_hud.h

// MESSAGE VFR_HUD PACKING

#define MAVLINK_MSG_ID_VFR_HUD 74

typedef struct __mavlink_vfr_hud_t {
    float    airspeed; ///< Current airspeed in m/s
    float    groundspeed; ///< Current ground speed in m/s
    float    alt; ///< Current altitude (MSL), in meters
    float    climb; ///< Current climb rate in meters/second
    int16_t  heading; ///< Current heading in degrees, in compass units (0..360, 0=north)
    uint16_t throttle; ///< Current throttle setting in integer percent, 0 to 100
} mavlink_vfr_hud_t;

#define MAVLINK_MSG_ID_VFR_HUD_LEN 20
#define MAVLINK_MSG_ID_74_LEN      20


#define MAVLINK_MESSAGE_INFO_VFR_HUD \
    { \
        "VFR_HUD", \
        6, \
        { \
            { "airspeed", NULL, MAVLINK_TYPE_FLOAT, 0, 0, offsetof(mavlink_vfr_hud_t, airspeed) }, \
            { "groundspeed", NULL, MAVLINK_TYPE_FLOAT, 0, 4, offsetof(mavlink_vfr_hud_t, groundspeed) }, \
            { "alt", NULL, MAVLINK_TYPE_FLOAT, 0, 8, offsetof(mavlink_vfr_hud_t, alt) }, \
            { "climb", NULL, MAVLINK_TYPE_FLOAT, 0, 12, offsetof(mavlink_vfr_hud_t, climb) }, \
            { "heading", NULL, MAVLINK_TYPE_INT16_T, 0, 16, offsetof(mavlink_vfr_hud_t, heading) }, \
            { "throttle", NULL, MAVLINK_TYPE_UINT16_T, 0, 18, offsetof(mavlink_vfr_hud_t, throttle) }, \
        } \
    }


/**
 * @brief Pack a vfr_hud message
 * @param system_id ID of this system
 * @param component_id ID of this component (e.g. 200 for IMU)
 * @param msg The MAVLink message to compress the data into
 *
 * @param airspeed Current airspeed in m/s
 * @param groundspeed Current ground speed in m/s
 * @param heading Current heading in degrees, in compass units (0..360, 0=north)
 * @param throttle Current throttle setting in integer percent, 0 to 100
 * @param alt Current altitude (MSL), in meters
 * @param climb Current climb rate in meters/second
 * @return length of the message in bytes (excluding serial stream start sign)
 */
static inline uint16_t mavlink_msg_vfr_hud_pack(uint8_t system_id, uint8_t component_id, mavlink_message_t *msg,
                                                float airspeed, float groundspeed, int16_t heading, uint16_t throttle, float alt, float climb)
{
#if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS
    char buf[20];
    _mav_put_float(buf, 0, airspeed);
    _mav_put_float(buf, 4, groundspeed);
    _mav_put_float(buf, 8, alt);
    _mav_put_float(buf, 12, climb);
    _mav_put_int16_t(buf, 16, heading);
    _mav_put_uint16_t(buf, 18, throttle);

    memcpy(_MAV_PAYLOAD_NON_CONST(msg), buf, 20);
#else
    mavlink_vfr_hud_t packet;
    packet.airspeed    = airspeed;
    packet.groundspeed = groundspeed;
    packet.alt = alt;
    packet.climb = climb;
    packet.heading     = heading;
    packet.throttle    = throttle;

    memcpy(_MAV_PAYLOAD_NON_CONST(msg), &packet, 20);
#endif

    msg->msgid = MAVLINK_MSG_ID_VFR_HUD;
    return mavlink_finalize_message(msg, system_id, component_id, 20, 20);
}

/**
 * @brief Pack a vfr_hud message on a channel
 * @param system_id ID of this system
 * @param component_id ID of this component (e.g. 200 for IMU)
 * @param chan The MAVLink channel this message was sent over
 * @param msg The MAVLink message to compress the data into
 * @param airspeed Current airspeed in m/s
 * @param groundspeed Current ground speed in m/s
 * @param heading Current heading in degrees, in compass units (0..360, 0=north)
 * @param throttle Current throttle setting in integer percent, 0 to 100
 * @param alt Current altitude (MSL), in meters
 * @param climb Current climb rate in meters/second
 * @return length of the message in bytes (excluding serial stream start sign)
 */
static inline uint16_t mavlink_msg_vfr_hud_pack_chan(uint8_t system_id, uint8_t component_id, uint8_t chan,
                                                     mavlink_message_t *msg,
                                                     float airspeed, float groundspeed, int16_t heading, uint16_t throttle, float alt, float climb)
{
#if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS
    char buf[20];
    _mav_put_float(buf, 0, airspeed);
    _mav_put_float(buf, 4, groundspeed);
    _mav_put_float(buf, 8, alt);
    _mav_put_float(buf, 12, climb);
    _mav_put_int16_t(buf, 16, heading);
    _mav_put_uint16_t(buf, 18, throttle);

    memcpy(_MAV_PAYLOAD_NON_CONST(msg), buf, 20);
#else
    mavlink_vfr_hud_t packet;
    packet.airspeed    = airspeed;
    packet.groundspeed = groundspeed;
    packet.alt = alt;
    packet.climb = climb;
    packet.heading     = heading;
    packet.throttle    = throttle;

    memcpy(_MAV_PAYLOAD_NON_CONST(msg), &packet, 20);
#endif

    msg->msgid = MAVLINK_MSG_ID_VFR_HUD;
    return mavlink_finalize_message_chan(msg, system_id, component_id, chan, 20, 20);
}

/**
 * @brief Encode a vfr_hud struct into a message
 *
 * @param system_id ID of this system
 * @param component_id ID of this component (e.g. 200 for IMU)
 * @param msg The MAVLink message to compress the data into
 * @param vfr_hud C-struct to read the message contents from
 */
static inline uint16_t mavlink_msg_vfr_hud_encode(uint8_t system_id, uint8_t component_id, mavlink_message_t *msg, const mavlink_vfr_hud_t *vfr_hud)
{
    return mavlink_msg_vfr_hud_pack(system_id, component_id, msg, vfr_hud->airspeed, vfr_hud->groundspeed, vfr_hud->heading, vfr_hud->throttle, vfr_hud->alt, vfr_hud->climb);
}

/**
 * @brief Send a vfr_hud message
 * @param chan MAVLink channel to send the message
 *
 * @param airspeed Current airspeed in m/s
 * @param groundspeed Current ground speed in m/s
 * @param heading Current heading in degrees, in compass units (0..360, 0=north)
 * @param throttle Current throttle setting in integer percent, 0 to 100
 * @param alt Current altitude (MSL), in meters
 * @param climb Current climb rate in meters/second
 */
#ifdef MAVLINK_USE_CONVENIENCE_FUNCTIONS

static inline void mavlink_msg_vfr_hud_send(mavlink_channel_t chan, float airspeed, float groundspeed, int16_t heading, uint16_t throttle, float alt, float climb)
{
#if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS
    char buf[20];
    _mav_put_float(buf, 0, airspeed);
    _mav_put_float(buf, 4, groundspeed);
    _mav_put_float(buf, 8, alt);
    _mav_put_float(buf, 12, climb);
    _mav_put_int16_t(buf, 16, heading);
    _mav_put_uint16_t(buf, 18, throttle);

    _mav_finalize_message_chan_send(chan, MAVLINK_MSG_ID_VFR_HUD, buf, 20, 20);
#else
    mavlink_vfr_hud_t packet;
    packet.airspeed    = airspeed;
    packet.groundspeed = groundspeed;
    packet.alt = alt;
    packet.climb = climb;
    packet.heading     = heading;
    packet.throttle    = throttle;

    _mav_finalize_message_chan_send(chan, MAVLINK_MSG_ID_VFR_HUD, (const char *)&packet, 20, 20);
#endif
}

#endif // ifdef MAVLINK_USE_CONVENIENCE_FUNCTIONS

// MESSAGE VFR_HUD UNPACKING


/**
 * @brief Get field airspeed from vfr_hud message
 *
 * @return Current airspeed in m/s
 */
static inline float mavlink_msg_vfr_hud_get_airspeed(const mavlink_message_t *msg)
{
    return _MAV_RETURN_float(msg, 0);
}

/**
 * @brief Get field groundspeed from vfr_hud message
 *
 * @return Current ground speed in m/s
 */
static inline float mavlink_msg_vfr_hud_get_groundspeed(const mavlink_message_t *msg)
{
    return _MAV_RETURN_float(msg, 4);
}

/**
 * @brief Get field heading from vfr_hud message
 *
 * @return Current heading in degrees, in compass units (0..360, 0=north)
 */
static inline int16_t mavlink_msg_vfr_hud_get_heading(const mavlink_message_t *msg)
{
    return _MAV_RETURN_int16_t(msg, 16);
}

/**
 * @brief Get field throttle from vfr_hud message
 *
 * @return Current throttle setting in integer percent, 0 to 100
 */
static inline uint16_t mavlink_msg_vfr_hud_get_throttle(const mavlink_message_t *msg)
{
    return _MAV_RETURN_uint16_t(msg, 18);
}

/**
 * @brief Get field alt from vfr_hud message
 *
 * @return Current altitude (MSL), in meters
 */
static inline float mavlink_msg_vfr_hud_get_alt(const mavlink_message_t *msg)
{
    return _MAV_RETURN_float(msg, 8);
}

/**
 * @brief Get field climb from vfr_hud message
 *
 * @return Current climb rate in meters/second
 */
static inline float mavlink_msg_vfr_hud_get_climb(const mavlink_message_t *msg)
{
    return _MAV_RETURN_float(msg, 12);
}

/**
 * @brief Decode a vfr_hud message into a struct
 *
 * @param msg The message to decode
 * @param vfr_hud C-struct to decode the message contents into
 */
static inline void mavlink_msg_vfr_hud_decode(const mavlink_message_t *msg, mavlink_vfr_hud_t *vfr_hud)
{
#if MAVLINK_NEED_BYTE_SWAP
    vfr_hud->airspeed    = mavlink_msg_vfr_hud_get_airspeed(msg);
    vfr_hud->groundspeed = mavlink_msg_vfr_hud_get_groundspeed(msg);
    vfr_hud->alt = mavlink_msg_vfr_hud_get_alt(msg);
    vfr_hud->climb = mavlink_msg_vfr_hud_get_climb(msg);
    vfr_hud->heading     = mavlink_msg_vfr_hud_get_heading(msg);
    vfr_hud->throttle    = mavlink_msg_vfr_hud_get_throttle(msg);
#else
    memcpy(vfr_hud, _MAV_PAYLOAD(msg), 20);
#endif
}